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Friday 23 May 2014

Marine Protected Areas

Marine Protected Areas.

These are areas of the sea that are protected from the public and they can not take any resources from there.

1. New Zealand is a remote, group of islands with extensive marine territory.

2. We have relied on the sea for nourishment since humans first settled here, and at times this has resulted in not able to be maintained at the current rate or level pressure on the marine environment.

3. The New Zealand Government is committed to ensuring that New Zealand’s marine biodiversity is maintained in a healthy state, and an important tool for this is Marine Protected Areas (MPAs).

4. The aim is to establish a network of M Pas that is comprehensive and representative of New Zealand’s marine habitats and ecosystems.

5. The network will also protect outstanding, rare, distinctive or important marine habitats or ecosystems.

6. Marine reserves currently provide the highest level of marine protection, generally formally forbid by law, rule, or other authority harvesting or human intervention.

7. There are over 30 marine reserves in New Zealand’s territorial waters, which are managed by the Department of Conservation (DOC).

8. The main aim of a marine reserve is to create an area largely free of human impacts, providing a useful comparison for scientists to study.


Blue maomao, Poor Knights Island Marine Reserve. Photo: Helen Kettles.

Thursday 15 May 2014

How are waves made

8 fact

How are waves made

1. If winds created in low pressure systems keep blowing the surface of the ocean for a long time, swells will be bigger because energy is accumulated in all waves produced.

2. Also, if low pressure winds affect a very large area of the ocean, all waves produced by the swell will have even more energy and power, resulting in even bigger waves.

3. We've already analyzed the "birth" of swell and correspondent waves, but there's a large distance to be traveled by those waves.

4. Original oceanic waves may have to run a long journey until they reach continental beaches.

5. Along the way, until they are ridden by surfers, these waves will have to challenge other variables.

6. The height of a wave when it is created is not the height of the waves that is ridden by a surfer.

7. Waves make their way through the ocean and are affected by the differences in the ocean floor.

8. When large volumes of water move and pass by higher sea floors, the overall energy of the swell is changed.

Bathymetry: deep water regions deliver bigger surfable waves

I got my facts from this site:

Friday 9 May 2014

How are waves made.

How waves are made.
1. Waves are mainly a product of the wind.
2. The best waves for surfing are the result of the interaction of winds on the surface of the ocean, far away from the coast.
4. Wind is the first step in the formation of surf able waves.
5. Local shore winds can also produce waves, but they can also destroy the quality of the breaking waves.
6. Onshore winds are typically known for creating choppy and bumpy waves because their effect is added to the direction of the wave.
7. In a way, offshore winds are a sort of a counterbalance.

8. Swell comes from miles away and the ground wind works as a "pause-hold" effect on the wave face, allowing longer unbreakable waves.
Waves: the importance of wave length, wave period and wave frequencyHow is a wave formed: wind is the source of the surf